A06 Specifications.docx

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Attached to
Submersible Spectrofluorometer Federal contract opportunity
Solicitation number
140G0120Q0127
Issued by
Department of the Interior US Geological Survey Office of Acquisitions and Grants

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Salient Characteristics S20065 Submersible Spectrofluorometer

SALIENT CHARACTERISTICS:

Probe:

1. Shall be a submersible type instrument capable of (1) measuring chlorophyll content in water (total content) and (2) quantitative determination of different algae classes, down to a depth of at least 100 meters.

2. Shall be capable of measuring total chlorophyll, green algae, cyanobacteria, diatoms, and cryptophytes.

3. Shall measure chlorophyll over a range of at least 0-200 μg chl-a/l.

4. Shall be capable of measuring hydrostatic pressure (pressure sensor) to a depth of at least 100 meters.

5. Shall be capable of measuring CDOM (Colored Dissolved Organic Matter), (i.e. yellow substances sensor).

6. Shall be capable of making at least 4 measurements per second.

7. Shall allow for turbidity corrections.

8. Shall include an internal data logger with a 2 MB (minimum) SD card.

9. Shall weigh no more than 7 kilograms and be no larger than 500 millimeters high and 150 millimeters in diameter.

10. Shall include an RS-485 communication interface.

11. Shall NOT have an internal battery.

12. Shall include hard plastic case, power supply, protection cap, USB adapter, USB stick, manual, and operational software.

Temperature Sensor:

13. Shall include a water temperature sensor capable of measuring over a range of at least -2 to 40 degrees C.

Transmission Sensor:

14. Shall include a sensor to measure turbidity (transmission) at 700nm.

Underwater Cable:

15. Shall be compatible with probe specs above.

16. Shall be at least 10 meters long.

Laboratory Cable:

17. Shall be compatible with probe specs above.

18. Shall be at least 60 centimeters long.

Wiper:

19. Shall enable the instrument, specs listed above, to remain submersed without the need of the sensor lenses being cleaned at regular intervals.

20. Shall be removable, NOT integrated with probe specs listed above.

21. Shall be submersible to at least 100 m.

Protocol Converter:

22. Shall be compatible with probe specs above and provide SDI-12 protocol communications.

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